616223923 has 4 divisors (see below), whose sum is σ = 704255920. Its totient is φ = 528191928.

The previous prime is 616223897. The next prime is 616223947. The reversal of 616223923 is 329322616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 616223923 - 2²⁹ = 79353011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616223953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44015988 + ... + 44016001.

It is an arithmetic number, because the mean of its divisors is an integer number (176063980).

Almost surely, 2^616223923 is an apocalyptic number.

616223923 is a deficient number, since it is larger than the sum of its proper divisors (88031997).

616223923 is an equidigital number, since it uses as much as digits as its factorization.

616223923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88031996.

The product of its digits is 23328, while the sum is 34.

The square root of 616223923 is about 24823.8579394904. The cubic root of 616223923 is about 850.9672601315.

The spelling of 616223923 in words is "six hundred sixteen million, two hundred twenty-three thousand, nine hundred twenty-three".